A C320E pilot enters the class B of O90 without clearance while 8 mi from sjc, ca.

Attributes
ACN	448870
Time
Date	199909
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sjc.airport
State Reference	CA
Altitude	msl single value : 6800
Environment
Flight Conditions	Mixed
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : o90.tracon
Operator	general aviation : personal
Make Model Name	Skynight 320
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 3000 flight time type : 200
ASRS Report	448870
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : less severe airspace violation : entry inflight encounter : weather non adherence : far
Independent Detector	other controllerb other flight crewa
Resolutory Action	none taken : detected after the fact other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Airspace Structure Flight Crew Human Performance Weather Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

En route from 4SD to rhv, realized it was IFR in bay area (I was VFR on top), reprogrammed the GPS for sjc and tried to raise ATC while on autoplt. While trying to troubleshoot my inability to reach ATC (proved to be a headphone problem) the autoplt carried me into the class B airspace before I had a clearance. Additionally, I waited too long to contact ATC, preparing in the pre-dawn, to obtain an approach clearance rather than a more involved en route to approach clearance.

Original NASA ASRS Text

Title: A C320E PLT ENTERS THE CLASS B OF O90 WITHOUT CLRNC WHILE 8 MI FROM SJC, CA.

Narrative: ENRTE FROM 4SD TO RHV, REALIZED IT WAS IFR IN BAY AREA (I WAS VFR ON TOP), REPROGRAMMED THE GPS FOR SJC AND TRIED TO RAISE ATC WHILE ON AUTOPLT. WHILE TRYING TO TROUBLESHOOT MY INABILITY TO REACH ATC (PROVED TO BE A HEADPHONE PROB) THE AUTOPLT CARRIED ME INTO THE CLASS B AIRSPACE BEFORE I HAD A CLRNC. ADDITIONALLY, I WAITED TOO LONG TO CONTACT ATC, PREPARING IN THE PRE-DAWN, TO OBTAIN AN APCH CLRNC RATHER THAN A MORE INVOLVED ENRTE TO APCH CLRNC.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.